A new study posits that same-sex sexual behavior developed to help primates in complex social groups ease tension, reduce ...

Same-sex behavior is common across the animal kingdom—more than 1,500 species are estimated to have been observed engaging in ...

Homosexual behaviour in primates has a deep evolutionary basis and is more likely to occur in species that live in harsh ...

Biologists tend to look at the animal kingdom and try to categorize things in an organized fashion. But nature has a way of ...

More than 59 different primate species have been observed participating in some kind of same-sex behaviors, making it ...

Groundbreaking research reveals that human microbes can trigger genetic brain activity in other species, suggesting our ...

1. Introduction / Tracy L. Kivell, Pierre Lemelin, Brian G. Richmond, and Daniel Schmitt -- 2. On primitiveness, prehensility, and opposability of the primate hand : the contributions of Frederic Wood ...

Researchers uncover evidence that the gut microbiome and brain connection can influence brain gene expression and neural ...

A new investigation led by researchers at Baylor College of Medicine’s Human Genome Sequencing Center, the Institute of Evolutionary Biology and Pompeu Fabra University in Barcelona, Spain, and ...

Homosexual behavior in primates has a deep evolutionary basis and is more likely to occur in species that live in harsh ...